CN108095812B - High-strength spinal spinous process fixing device - Google Patents
High-strength spinal spinous process fixing device Download PDFInfo
- Publication number
- CN108095812B CN108095812B CN201810119081.5A CN201810119081A CN108095812B CN 108095812 B CN108095812 B CN 108095812B CN 201810119081 A CN201810119081 A CN 201810119081A CN 108095812 B CN108095812 B CN 108095812B
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- plate
- vertebral
- spinous process
- fixing plate
- wall
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- 238000000034 method Methods 0.000 title claims abstract description 64
- 239000000956 alloy Substances 0.000 claims abstract description 7
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 7
- 210000000115 thoracic cavity Anatomy 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 241001079814 Symphyotrichum pilosum Species 0.000 description 4
- 235000004224 Typha angustifolia Nutrition 0.000 description 4
- 208000002193 Pain Diseases 0.000 description 2
- 210000005036 nerve Anatomy 0.000 description 2
- 206010028570 Myelopathy Diseases 0.000 description 1
- 208000004550 Postoperative Pain Diseases 0.000 description 1
- 208000031737 Tissue Adhesions Diseases 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000008468 bone growth Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 210000000273 spinal nerve root Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
- A61B17/7067—Devices bearing against one or more spinous processes and also attached to another part of the spine; Tools therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7059—Cortical plates
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a high-strength spine spinous process fixing device which is prepared from a memory alloy material and comprises a spinal canal inner wall supporting plate, wherein two groups of connecting rods are symmetrically arranged on two side edges of the spinal canal inner wall supporting plate, the top ends of each group of connecting rods are respectively and movably connected with two ends of the bottom edges of two vertebral plate fixing plates, the middle part of the bottom edge of each vertebral plate fixing plate is hinged with the bottom edge of each spinous process fixing plate, a countersunk head screw mounting hole is formed in the top of each vertebral plate fixing plate, and a countersunk head screw mounting hole is formed in the top of each spinous process fixing plate. According to the invention, through the close fitting and positioning of the supporting plate on the inner wall of the vertebral canal and the inner wall of the vertebral canal, the vertebral plate fixing plate is fixed with the vertebral plate, so that support is provided for the connection between the spinous process fixing plate and the spinous process, the firmness of spinous process fixation is enhanced, and the spinous process is not easy to fall off in use. The invention is prepared from the memory alloy material, has simple structure and low manufacturing cost, is convenient for doctors to operate, does not need special technology, and reduces the economic burden of patients.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a high-strength spine spinous process fixing device.
Background
Currently, the rod fixation system is the mainstream instrument for spinal surgery fixation for nearly 20 years, and the rod fixation system is undoubted in terms of fixation firmness. However, the nail rod fixing system is expensive, in the actual operation process, doctors are required to have special technology, and not all surgeons can directly use the nail rod fixing system; and after the nail rod fixing system is installed, the spinous process of the patient can not be reset, so that tissue adhesion is caused, spinal cord and nerve root functions are affected, such as spinal cord degeneration, nerve root pain and the like, and great postoperative pain is brought to the patient.
Patent CN104873257a discloses a spinous process fixing device, which is formed by buckling two spinous process fixing device bodies in 7 shape in a reverse way, when in use, the spinous process under occlusion is placed at the pedicle of a patient, the spinous process fixing device bodies are positioned by the transverse edges of the spinous process fixing device bodies, the tightness of spinous process fixing is adjusted through adjusting holes, screws are installed, the longitudinal edges of the spinous process fixing device bodies are respectively fixed at two sides of the spine, and the spinous process under occlusion is safely and reliably fixed on the spine. The device is used for fixing the spinous process after the reduction of the vertebral lamina, and no inner supporting plate of the spinous process exists, and the vertebral lamina is a spongy bone, so that the device is easy to fall off after operation and is not firm enough in fixation.
Disclosure of Invention
The invention aims to provide a high-strength spine spinous process fixing device, which aims to solve the problems that an existing nail rod fixing system is high in price, needs professional operation, is not firm enough in spinous process fixation and is easy to fall off.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a high strength backbone spinous process fixing device, this device is prepared by memory alloy material, it includes rectangular spinal canal inner wall backup pad, spinal canal inner wall backup pad's both sides limit symmetry is equipped with two sets of connecting rods mutually perpendicular with spinal canal inner wall backup pad, the top of every connecting rod of group respectively with the base both ends swing joint of two lamina fixed plates, the middle part of lamina fixed plate base is articulated mutually with the base of spinous process fixed plate, the top of every lamina fixed plate is equipped with countersunk head screw mounting hole, the top of spinous process fixed plate is equipped with countersunk head screw mounting hole.
Preferably, the two sides of the bottom edge of the vertebral plate fixing plate are provided with protrusions, and the protrusions are clamped in the top round holes of the connecting rods.
Preferably, the diameter of the mounting hole is 2-3mm.
Preferably, the width of the connecting rod is 4-7mm.
Preferably, the sizes of the inner wall supporting plate, the vertebral lamina fixing plate and the spinous process fixing plate of the vertebral canal are adjusted according to the widths of the cervical vertebra, the thoracic vertebra and the lumbar vertebra.
When the invention is used, the inner wall supporting plate of the vertebral canal is firstly placed on one surface of the inner wall of the vertebral canal, which is close to the spinous process, the inner wall supporting plate of the vertebral canal is bent according to the shape of the inner wall of the vertebral canal, then four connecting rods are tightly attached to the outer wall of the vertebral canal, the protrusions on the two sides of the bottom edge of the vertebral plate fixing plate are inserted into round holes at the top ends of the connecting rods, the position of the spinous process fixing plate is adjusted, the spinous process fixing plate is fixed on the spinous process by using screws, and the vertebral plate fixing plate is fixed on the vertebral arch plate by using countersunk screws, so that the fixation of the spinous process is completed.
The beneficial effects of the invention are as follows:
(1) According to the invention, through the close fitting and positioning of the supporting plate on the inner wall of the vertebral canal and the inner wall of the vertebral canal, the vertebral plate fixing plate is fixed with the vertebral plate, so that support is provided for the connection between the spinous process fixing plate and the spinous process, the firmness of spinous process fixation is enhanced, and the spinous process is not easy to fall off in use;
(2) The invention is movably connected to the top end of the connecting rod through the vertebral plate fixing plate, and the spinous process fixing plate is hinged to the bottom of the vertebral plate fixing plate, so that the installation and connection of the fixing device in operation are facilitated, meanwhile, the radian between the vertebral plate fixing plate and the spinous process fixing plate is convenient to adjust according to actual conditions, the fitting degree between the device and the spine of a patient is enhanced, the anatomical reduction of the front column, the middle column and the rear column of the spine is realized, the physiological requirement is met, and the local muscle tissue scar of the patient after operation is prevented from forming adhesion, and nerve root pain and spine degeneration are caused;
(3) The invention is prepared from the memory alloy material, has simple structure and low manufacturing cost, is convenient for doctors to operate, does not need special technology, and reduces the economic burden of patients.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
Fig. 2 is a schematic view of the connection between the lamina and spinous process fixation plates of fig. 1;
in the figure: 1. the spinous process fixing plate, 2, countersunk head screw mounting holes, 3, the vertebral lamina fixing plate, 4, the inner wall supporting plate of the vertebral canal, 5, the protuberance, 6 and the connecting rod.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
The high-strength spine spinous process fixing device is prepared from a memory alloy material and comprises a rectangular spine inner wall supporting plate 4, two groups of connecting rods 6 perpendicular to the spine inner wall supporting plate are symmetrically arranged on two side edges of the spine inner wall supporting plate 4, round holes are formed in the top ends of the connecting rods 6, protrusions 5 are arranged on two sides of the bottom edge of a spine fixing plate 3, and the protrusions 5 are clamped in the round holes in the top ends of the connecting rods 6. The middle part of the bottom edge of the vertebral plate fixing plate 3 is hinged with the bottom edge of the spinous process fixing plate 1, the top of each vertebral plate fixing plate 3 is provided with a countersunk head screw mounting hole 2, and the top of the spinous process fixing plate 1 is provided with a countersunk head screw mounting hole 2.
The diameter of the mounting hole 2 is 2-3mm. The width of the connecting rod 6 is 4-7mm.
The sizes of the inner wall supporting plate 4 of the vertebral canal, the vertebral plate fixing plate 3 and the spinous process fixing plate 1 are adjusted according to the widths of the cervical vertebra, the thoracic vertebra and the lumbar vertebra.
When the invention is used, the inner wall supporting plate 4 of the vertebral canal is firstly placed on one surface of the inner wall of the vertebral canal, which is close to the spinous process, the inner wall supporting plate 4 of the vertebral canal is bent according to the shape of the inner wall of the vertebral canal, then four connecting rods 6 are tightly attached to the outer wall of the vertebral arch plate, the protrusions 5 on the two sides of the bottom edge of the vertebral plate fixing plate 3 are inserted into round holes on the top ends of the connecting rods 6, the position of the spinous process fixing plate 1 is adjusted, the spinous process fixing plate 1 is fixed on the spinous process by using a screw, and the vertebral plate fixing plate 3 is fixed on the vertebral plate by using a countersunk screw, so that the fixation of the spinous process is completed.
According to the invention, through the close fitting and positioning of the supporting plate on the inner wall of the vertebral canal and the inner wall of the vertebral canal, the vertebral plate fixing plate is fixed with the vertebral plate, so that support is provided for the connection between the spinous process fixing plate and the spinous process, the firmness of spinous process fixation is enhanced, and the spinous process is not easy to fall off in use. The invention is prepared from the memory alloy material, has simple structure and low manufacturing cost, is convenient for doctors to operate, does not need special technology, and reduces the economic burden of patients.
Bone growth materials can be filled in the memory gap in the step (6), so that the broken position of the spinous process is completely healed, the anatomical structure of the spine is completely restored, and the problem of spine stability caused by operation is avoided.
Claims (1)
1. The utility model provides a high strength backbone spinous process fixing device, this device is prepared by memory alloy material, its characterized in that: the two-way connecting rod fixing device comprises a rectangular supporting plate (4) of the inner wall of a vertebral canal, two groups of connecting rods (6) perpendicular to the supporting plate of the inner wall of the vertebral canal are symmetrically arranged on two side edges of the supporting plate (4) of the inner wall of the vertebral canal, the top end of each group of connecting rods (6) is movably connected with two ends of the bottom edge of a vertebral plate fixing plate (3) respectively, the middle part of the bottom edge of the vertebral plate fixing plate (3) is hinged with the bottom edge of a spinous process fixing plate (1), a countersunk head screw mounting hole (2) is formed in the top of each vertebral plate fixing plate (3), and a countersunk head screw mounting hole (2) is formed in the top of the spinous process fixing plate (1); protrusions (5) are arranged on two sides of the bottom edge of the vertebral plate fixing plate (3), and the protrusions (5) are clamped in top round holes of the connecting rods (6); the width of the connecting rod (6) is 4-7mm; the sizes of the supporting plate (4), the vertebral plate fixing plate (3) and the spinous process fixing plate (1) on the inner wall of the vertebral canal are adjusted according to the widths of the cervical vertebra, the thoracic vertebra and the lumbar vertebra; firstly, placing a supporting plate (4) on the inner wall of a vertebral canal on one surface of the inner wall of the vertebral canal, which is close to a spinous process, bending the supporting plate (4) on the inner wall of the vertebral canal according to the shape of the inner wall of the vertebral canal, then, tightly attaching four connecting rods (6) to the outer wall of the vertebral canal, inserting protrusions (5) on two sides of the bottom edge of a vertebral plate fixing plate (3) in round holes on the top ends of the connecting rods, adjusting the position of the spinous process fixing plate (1), fixing the spinous process fixing plate (1) on the spinous process by using a screw, and fixing the vertebral plate fixing plate (3) on a vertebral arch plate by using a countersunk screw to finish the fixation of the spinous process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810119081.5A CN108095812B (en) | 2018-02-06 | 2018-02-06 | High-strength spinal spinous process fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810119081.5A CN108095812B (en) | 2018-02-06 | 2018-02-06 | High-strength spinal spinous process fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108095812A CN108095812A (en) | 2018-06-01 |
| CN108095812B true CN108095812B (en) | 2024-04-26 |
Family
ID=62221950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810119081.5A Active CN108095812B (en) | 2018-02-06 | 2018-02-06 | High-strength spinal spinous process fixing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108095812B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200382166Y1 (en) * | 2005-02-04 | 2005-04-19 | 정연문 | Device for spinous process fixation |
| JP2009285072A (en) * | 2008-05-28 | 2009-12-10 | Hoya Corp | Spacer |
| CN102366335A (en) * | 2011-10-27 | 2012-03-07 | 黄海燕 | Artificial titanium alloy stabilizing-wing vertebral plate for three-dimensional reconstruction shaping of vertebrae |
| TWM444819U (en) * | 2009-03-27 | 2013-01-11 | ming-chao Zhang | Vertebra Laminoplasty apparatus |
| CN104873257A (en) * | 2015-06-05 | 2015-09-02 | 兰州大学第一医院 | Spinous fixator |
| CN105055058A (en) * | 2015-09-02 | 2015-11-18 | 北京爱康宜诚医疗器材股份有限公司 | Artificial vertebral lamina and vertebral canal expansion tool |
| CN107088086A (en) * | 2017-06-23 | 2017-08-25 | 吉林大学 | A kind of artificial neural plate after spinal lamina resection |
| CN208511151U (en) * | 2018-02-06 | 2019-02-19 | 兰州大学第一医院 | The fixed device of high-intensitive spinous process |
-
2018
- 2018-02-06 CN CN201810119081.5A patent/CN108095812B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200382166Y1 (en) * | 2005-02-04 | 2005-04-19 | 정연문 | Device for spinous process fixation |
| JP2009285072A (en) * | 2008-05-28 | 2009-12-10 | Hoya Corp | Spacer |
| TWM444819U (en) * | 2009-03-27 | 2013-01-11 | ming-chao Zhang | Vertebra Laminoplasty apparatus |
| CN102366335A (en) * | 2011-10-27 | 2012-03-07 | 黄海燕 | Artificial titanium alloy stabilizing-wing vertebral plate for three-dimensional reconstruction shaping of vertebrae |
| CN104873257A (en) * | 2015-06-05 | 2015-09-02 | 兰州大学第一医院 | Spinous fixator |
| CN105055058A (en) * | 2015-09-02 | 2015-11-18 | 北京爱康宜诚医疗器材股份有限公司 | Artificial vertebral lamina and vertebral canal expansion tool |
| CN107088086A (en) * | 2017-06-23 | 2017-08-25 | 吉林大学 | A kind of artificial neural plate after spinal lamina resection |
| CN208511151U (en) * | 2018-02-06 | 2019-02-19 | 兰州大学第一医院 | The fixed device of high-intensitive spinous process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108095812A (en) | 2018-06-01 |
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Effective date of registration: 20240326 Address after: No. 25 Yu'an Second Road, Bao'an District, Shenzhen, Guangdong Province Applicant after: SHENZHEN CITY BAO'AN DISTRICT CHINESE MEDICINE Hospital Country or region after: China Address before: 730000, No. 11, Donggang West Road, Lanzhou City, Gansu Province Applicant before: THE FIRST HOSPITAL OF LANZHOU University Country or region before: China |
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